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How to check if element exists using a lambda expression?
... }
return false;
}
public boolean containsTabById(TabPane tabPane, String id) {
return containsByLambda(tabPane.getTabs(), z -> z.getId().equals(id));
}
...
if (containsTabById(tabPane, idToCheck))) {
...
}
...
Use of var keyword in C#
...e is
incredibly ugly because of all the
redundancy:
Dictionary<string, List<int>> mylists = new Dictionary<string, List<int>>();
And that's a simple example – I've
written worse. Any time you're forced
to type exactly the same thing twice,
that's a redun...
What is the point of interfaces in PHP?
...can create. They define what methods a class must have, but you can create extra methods outside of those limitations.
I'm not sure what you mean by not being able to add code to methods - because you can. Are you applying the interface to an abstract class or the class that extends it?
A method ...
How to return multiple lines JSX in another return statement in React?
...act/blog/2017/09/26/react-v16.0.html#new-render-return-types-fragments-and-strings
EDIT: React 16.2 lets you surround a list of elements with <Fragment>…</Fragment> or even <>…</>, if you prefer that to an array: https://blog.jmes.tech/react-fragment-and-semantic-html/
...
What's the difference between a Python “property” and “attribute”?
...
@martineau: Well, there's one extra function call, but most likely the extra work and time will depend on how much the property is doing (general advice: do /not/ use properties to hide I/O).
– Ethan Furman
Jun 25 '...
Using member variable in lambda capture list inside a member function
...
The solution might make an unnecessary extra copy of grid though it probably gets optimized out. Shorter and better is: auto& tmp = grid; etc.
– Tom Swirly
Aug 10 '15 at 17:49
...
Why do I have to access template base class members through the this pointer?
...s) has to be qualified. Inside of Foo, you'd have to write:
typename std::string s = "hello, world";
because std::string would be a dependent name, and hence assumed to be a non-type unless specified otherwise. Ouch!
A second problem with allowing your preferred code (return x;) is that even if ...
How to use clock() in C++
...0;
int min = 0;
int hr = 0;
//cout << "Press any key to start:";
//char start = _gtech();
for (;;)
{
newline();
if(msec == 1000)
{
++sec;
msec = 0;
}
if(sec == 60)
...
What is the combinatory logic equivalent of intuitionistic type theory?
...uction we know.)
Combinator Syntax and Normalization
Anyhow, we have two extra symbols, Pi and Set, so we might perhaps manage a combinatory translation with S, K and two extra symbols: I chose U for the universe and P for the product.
Now we can define the untyped combinatory syntax (with free v...
How do I tell git-svn about a remote branch created after I fetched the repo?
...
This will fetch ALL the remote branches that have not been fetched yet.
Extra tip: if you checked out only the trunk at first, and later you want to track ALL branches, then edit .git/config to look like this and re-run git svn fetch:
[svn-remote "svn"]
url = https://svn/path_to_repo_roo...